North America Native Plant

Cusick’s Popcornflower

Botanical name: Plagiobothrys scouleri var. cusickii

USDA symbol: PLSCC

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Allocarya cusickii Greene (ALCU2)  âš˜  Plagiobothrys cusickii (Greene) I.M. Johnst. (PLCU2)   

Cusick’s Popcornflower: A Charming Native Annual for Western Gardens If you’re looking for a delicate, low-maintenance native wildflower to add to your western garden, meet Cusick’s popcornflower (Plagiobothrys scouleri var. cusickii). This modest little annual might not be the showiest plant in your garden, but it brings authentic regional character ...

Cusick’s Popcornflower: A Charming Native Annual for Western Gardens

If you’re looking for a delicate, low-maintenance native wildflower to add to your western garden, meet Cusick’s popcornflower (Plagiobothrys scouleri var. cusickii). This modest little annual might not be the showiest plant in your garden, but it brings authentic regional character and quiet beauty that’s hard to beat.

What Makes Cusick’s Popcornflower Special?

Cusick’s popcornflower is a true native of the American West, naturally occurring across California, Idaho, Nevada, Oregon, and Washington. As an annual forb—basically a non-woody flowering plant—it completes its entire life cycle in one growing season, making it perfect for gardeners who enjoy seasonal variety.

The plant gets its charming common name from its tiny white flowers that cluster together in coiled arrangements, somewhat resembling miniature kernels of popcorn. These delicate blooms appear on slender stems and create a soft, airy texture in the garden landscape.

Why Grow Cusick’s Popcornflower?

There are several compelling reasons to consider adding this native beauty to your garden:

  • True regional native: Supporting local ecosystems by growing plants that naturally belong in your area
  • Low maintenance: Once established, it requires minimal care and can even self-seed for future seasons
  • Pollinator friendly: The small white flowers attract beneficial insects and native bees
  • Drought tolerant: Well-adapted to western growing conditions with minimal water needs
  • Natural look: Perfect for wildflower meadows and naturalized garden areas

Where Does It Fit in Your Garden?

Cusick’s popcornflower works beautifully in several garden settings:

  • Native plant gardens: An authentic addition to regional plant communities
  • Wildflower meadows: Provides delicate texture among bolder wildflowers
  • Rock gardens: Thrives in well-draining conditions
  • Naturalized areas: Perfect for low-maintenance, natural-looking spaces

Growing Cusick’s Popcornflower Successfully

The good news is that this native annual is quite easy to grow, especially if you’re gardening within its natural range of USDA zones 5-9.

Preferred Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils; adaptable to various soil types
  • Water: Drought tolerant once established; minimal supplemental watering needed
  • Climate: Hardy in USDA zones 5-9

Planting and Care Tips

Since Cusick’s popcornflower is an annual, the easiest way to establish it is through direct seeding:

  • When to plant: Sow seeds in fall or early spring
  • Seeding: Scatter seeds directly in the garden where you want them to grow
  • Care: Very minimal care required once established
  • Self-seeding: Allow some flowers to go to seed for natural reseeding

The Bottom Line

Cusick’s popcornflower may be small in stature, but it’s big on charm and ecological value. If you’re gardening in the western United States and want to support native plant communities while adding delicate beauty to your landscape, this little annual deserves a spot in your garden. Its low-maintenance nature and ability to self-seed make it an excellent choice for both beginner and experienced gardeners who appreciate the understated elegance of native wildflowers.

Plus, there’s something deeply satisfying about growing a plant that has been quietly beautifying western landscapes for centuries—long before any of us started thinking about garden design!

Cusick’s Popcornflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Plagiobothrys Fisch. & C.A. Mey. - popcornflower

Species

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. - Scouler's popcornflower

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA